RHSA-2024:10773 - Security Advisory

Topic

An update for kernel-rt is now available for Red Hat Enterprise Linux 9.2 Extended Update Support.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

• kernel: x86/mm: Randomize per-cpu entry area (CVE-2023-0597)
• kernel: TCP-spoofed ghost ACKs and leak leak initial sequence number (CVE-2023-52881,RHV-2024-1001)
• kernel: pstore/ram: Fix crash when setting number of cpus to an odd number (CVE-2023-52619)
• kernel: nouveau: fix instmem race condition around ptr stores (CVE-2024-26984)
• kernel: Bluetooth: l2cap: fix null-ptr-deref in l2cap_chan_timeout (CVE-2024-27399)
• kernel: spi: Fix null dereference on suspend (CVE-2023-52749)
• kernel: scsi: mpi3mr: Avoid memcpy field-spanning write WARNING (CVE-2024-36920)
• kernel: tcp: Fix shift-out-of-bounds in dctcp_update_alpha(). (CVE-2024-37356)
• kernel: drm/radeon: fix UBSAN warning in kv_dpm.c (CVE-2024-40988)
• kernel: bpf: Fix overrunning reservations in ringbuf (CVE-2024-41009)
• kernel: xfs: add bounds checking to xlog_recover_process_data (CVE-2024-41014)
• kernel: udp: Set SOCK_RCU_FREE earlier in udp_lib_get_port() (CVE-2024-41041)
• kernel: drm/amdgpu: avoid using null object of framebuffer (CVE-2024-41093)
• kernel: tcp_metrics: validate source addr length (CVE-2024-42154)
• kernel: x86/bhi: Avoid warning in #DB handler due to BHI mitigation (CVE-2024-42240)
• kernel: block: initialize integrity buffer to zero before writing it to media (CVE-2024-43854)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

The system must be rebooted for this update to take effect.

Affected Products

• Red Hat Enterprise Linux for Real Time for x86_64 - 4 years of updates 9.2 x86_64
• Red Hat Enterprise Linux for Real Time for NFV for x86_64 - 4 years of updates 9.2 x86_64

Fixes

• BZ - 2165926 - CVE-2023-0597 kernel: x86/mm: Randomize per-cpu entry area
• BZ - 2258875 - CVE-2023-52881 kernel: TCP-spoofed ghost ACKs and leak leak initial sequence number
• BZ - 2270084 - CVE-2023-52619 kernel: pstore/ram: Fix crash when setting number of cpus to an odd number
• BZ - 2278333 - CVE-2024-26984 kernel: nouveau: fix instmem race condition around ptr stores
• BZ - 2280462 - CVE-2024-27399 kernel: Bluetooth: l2cap: fix null-ptr-deref in l2cap_chan_timeout
• BZ - 2282679 - CVE-2023-52749 kernel: spi: Fix null dereference on suspend
• BZ - 2284515 - CVE-2024-36920 kernel: scsi: mpi3mr: Avoid memcpy field-spanning write WARNING
• BZ - 2293658 - CVE-2024-37356 kernel: tcp: Fix shift-out-of-bounds in dctcp_update_alpha().
• BZ - 2297572 - CVE-2024-40988 kernel: drm/radeon: fix UBSAN warning in kv_dpm.c
• BZ - 2298412 - CVE-2024-41009 kernel: bpf: Fix overrunning reservations in ringbuf
• BZ - 2300297 - CVE-2024-41014 kernel: xfs: add bounds checking to xlog_recover_process_data
• BZ - 2300410 - CVE-2024-41041 kernel: udp: Set SOCK_RCU_FREE earlier in udp_lib_get_port()
• BZ - 2300488 - CVE-2024-41093 kernel: drm/amdgpu: avoid using null object of framebuffer
• BZ - 2301522 - CVE-2024-42154 kernel: tcp_metrics: validate source addr length

CVEs

• CVE-2023-0597
• CVE-2023-52619
• CVE-2023-52749
• CVE-2023-52881
• CVE-2024-26984
• CVE-2024-27399
• CVE-2024-36920
• CVE-2024-37356
• CVE-2024-40988
• CVE-2024-41009
• CVE-2024-41014
• CVE-2024-41041
• CVE-2024-41093
• CVE-2024-42154
• CVE-2024-42240
• CVE-2024-43854

References

• https://access.redhat.com/security/updates/classification/#moderate